Nutrient Database

Bifidobacterium

probiotic

Approved

General information about nutrients. No diagnosis, no medical advice. If you take medication, are pregnant or have a medical condition, talk to your doctor before taking supplements.

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Overview

Genus of bacteria that live in the human colon. Found in fermented foods such as yogurt and kefir.

Interactions

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Bifidobacteria produce Folate

Bifidobacterium strains (B. adolescentis, B. longum) are de novo folate producers in the colon, contributing to host folate status through colonic absorption.

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Bifidobacteria produce B12

Certain Bifidobacterium strains (B. animalis, B. longum) possess the cobalt-dependent biosynthetic pathway for cobalamin (B12) production in the colon, contributing to host B12 status.

Research status

Bifidobacteria decline significantly with aging.

Top 5 food sources

Yogurtkefirtempehmisocertain cheeses
Expert consensus: Strong

Dominant in infant gut. B. longum and B. bifidum most studied for adults.